6743920 has 20 divisors (see below), whose sum is σ = 15679800. Its totient is φ = 2697536.

The previous prime is 6743887. The next prime is 6743923. The reversal of 6743920 is 293476.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6743923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42070 + ... + 42229.

It is an arithmetic number, because the mean of its divisors is an integer number (783990).

Almost surely, 2^6743920 is an apocalyptic number.

It is an amenable number.

6743920 is an abundant number, since it is smaller than the sum of its proper divisors (8935880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6743920 is a wasteful number, since it uses less digits than its factorization.

6743920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84312 (or 84306 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 6743920 is about 2596.9058512006. The cubic root of 6743920 is about 188.9313973278.

The spelling of 6743920 in words is "six million, seven hundred forty-three thousand, nine hundred twenty".